package jdbc;

import java.sql.Connection;
import java.sql.Statement;

public class JDBCDemo3 {
    public static void main(String[] args) {
        try(
                Connection connection = DBUtil.getConnection();
                ) {
            Statement statement = connection.createStatement();
            String sql="update lkp "+
                    "set password='9999'"+
                    "where username='lkp'";
            int num = statement.executeUpdate(sql);
            if(num>0)
                System.out.println("修改成功");
            else
                System.out.println("修改失败");
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}
